So if I made my own Lemmy instance, and subscribed to !selfhosted, does that mean if Lemmy.world went down, the !selfhosted community is still up?

I started my own instance and do currently not intend to open it for others (besides, maybe, close friends and family).

My intention are

• to learn more about the concepts
• evaluate how reliable the replication of comments and posts works
• maybe create my own pseudo-community just for myself, as kind of a simplified blog

Reading other posts in this sub, I saw it is still seen as offloading the main servers, as the replication of the data is a low load compared to serving the UI. Maybe one of these motivations apply to you, too? Or you find another one? At the end of the day, host your own instance if you want to :-)

I host my own instance, but I like selfhosting as a hobby. I really love having all my account/login stuff on my own hardware and my own backups. If I break something, its just my own stuff that broken, no harm done to any other users. I don't really plan on hosting any of my own communities, just participating in others. I'm an avid seflhoster, and my setup is pretty exotic compared to the vast majority of hosters, but I got the whole thing working perfectly over a day. Much better than when I tried to get mastodon working. More power to more fediverse stuff though.

For me the benefit is uniformity (not sure if thats a word) i can have a matrix account, a mastodon account, a lemmy account, all sorts of fediverse accounts all under my own domain.

This comes next to the already mentioned benefits ofcourse :)